Griggs #3
Key Takeaway
Griggs #3 is classified as low hazard in Colorado. It was completed in 1952 and is 74 years old.
Physical Details
| Dam Height | 18 ft (taller than 29.2% in CO) |
| Dam Length | 1,900 ft |
| Dam Type | Earth |
| Max Storage | 75 acre-ft |
| Normal Storage | 35 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 157 cfs |
| Year Completed | 1952 (74 years old) |
| NID ID | CO02697 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
J. E. YUST
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Griggs #3?
Griggs #3 is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Griggs #3?
Griggs #3 is owned by J. E. YUST (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Griggs #3 built?
Griggs #3 was completed in 1952, making it 74 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
How tall is Griggs #3?
Griggs #3 has a dam height of 18 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was Griggs #3 last inspected?
Griggs #3 was last inspected on July 19, 1988. Inspection dates indicate when a formal review occurred, not the results of that inspection.